Verb to be
In order to practice you can visit these sites wher you can find a lot of exercises related to this grammar tense.
http://madridteacher.com/Grammar/verbo-to-be.htm
http://www.saberingles.com.ar/curso/lesson01/06.html
http://madridteacher.com/Grammar/verbo-to-be.htm
http://www.saberingles.com.ar/curso/lesson01/06.html
Prepositions of place
In this case the activites are related to the prepositions of place.
http://www.inglestotal.com/prepositions-of-place-preposiciones-de-lugar-lesson-11/
http://www.ego4u.com/en/cram-up/grammar/prepositions/exercises?07
http://www.detailenglish.com/index.php?page=articles&op=readArticle&id=230&title=Prepositions-of-Place-Exercises-With-Pictures
http://www.inglestotal.com/prepositions-of-place-preposiciones-de-lugar-lesson-11/
http://www.ego4u.com/en/cram-up/grammar/prepositions/exercises?07
http://www.detailenglish.com/index.php?page=articles&op=readArticle&id=230&title=Prepositions-of-Place-Exercises-With-Pictures
Describing people
http://www.mansioningles.com/ejer_voc01.htm
http://www.shertonenglish.com/resources/es/adjectives/adjectives-descriptive06.php
http://www.ego4u.com/en/cram-up/grammar/adjectives-adverbs/adjectives/exercises
http://www.shertonenglish.com/resources/es/adjectives/adjectives-descriptive06.php
http://www.ego4u.com/en/cram-up/grammar/adjectives-adverbs/adjectives/exercises